import pymysql

class DB():
    def __init__(self):
        self.conn=pymysql.connect(
            host='localhost',port=3306,user='root',password='root',db='workf',charset='utf8',cursorclass=pymysql.cursors.DictCursor
        )
        self.cursor = self.conn.cursor()
    
    # 添加,修改,删除
    def insert(self,sql):
        self.cursor.execute(sql)
        self.conn.commit()
    
    # 查询单条数据
    def find(self,sql):
        self.cursor.execute(sql)
        return self.cursor.fetchone()

    # 查询全部数据

    



db1 = DB()